| 基于聚焦形貌测量的铝合金电弧增材制造件表面三维形貌重建 |
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| 引用本文： | 张逢骏,张逸.基于聚焦形貌测量的铝合金电弧增材制造件表面三维形貌重建[J].光学技术,2020(2):173-177. |
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| 作者姓名： | 张逢骏 张逸 |
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| 作者单位： | 南京航空航天大学机电学院 |
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| 摘 要： | 针对聚焦形貌测量提出了一种组合式的像素点清晰度评价算法。对于有序点云缺失点的插补,使用基于三次B样条的方法,来进行插补,通过实验证明该方法能够有效的补齐缺失点,以得到完整的点云数据。根据聚焦形貌恢复技术原理,搭建了一套完整的硬件,通过精度验证实验,测量设备在10X倍率下的测量精度在742.9nm。并对铝合金电弧增材制造件进行了表面形貌测量,可清晰观察其表面形貌,检测其缺陷。实验结果表明提出的方法兼具恢复的高精度性及有效性,应用此方法可以完成微观形貌的表面三维参数的测量分析。
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| 关 键 词： | 聚焦评估 形貌测量 评估算子 增材制造 |
Reconstruction of three-dimensional surface morphology of aluminum alloy arc adding parts based on focused morphology measurement |
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| ZHANG Fengjun,ZHANG Yi.Reconstruction of three-dimensional surface morphology of aluminum alloy arc adding parts based on focused morphology measurement[J].Optical Technique,2020(2):173-177. |
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| Authors: | ZHANG Fengjun ZHANG Yi |
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| Institution: | (College of Mechatronics,Nanjing University of Aeronautics and Astronautics,Nanjing 210000,China) |
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| Abstract: | A combined pixel sharpness evaluation algorithm is proposed for focusing evaluation. For the interpolation of missing points in ordered point clouds, the method based on cubic B-spline is used to interpolate. Experiments show that the method can effectively fill missing points to obtain complete point cloud data. According to the principle of focused morphology recovery technology, a complete set of hardware was built, and the surface morphology of aluminum alloy Arc-added parts was measured. How to observe the surface morphology clearly and detect its defects was also discussed. It provides a reliable optical measurement method for the inspection of added material parts. |
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| Keywords: | focus evaluation topography measurement sharpness evaluation additive manufacturing |
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